Effects of Repeated Exposure to Fox Odor on Locomotor Activity Levels and Spatial Movement Patterns in Breeding Male and Female Meadow Voles (Microtus pennsylvanicus)

Journal of Chemical Ecology - 1999
T. S. Perrot-Sinal1,2, K.-P. Ossenkopp1, M. Kavaliers1
1Neuroscience Program, University of Western Ontario, London, Canada
2Department of Physiology, School of Medicine, Bressler Building, University of Maryland, Baltimore

Tóm tắt

Following five days of baseline activity recording, voles were exposed to fox odor for 3 min each day for five days. Immediately following each daily exposure, locomotor activity levels and spatial movement patterns were assessed using an automated activity monitoring system (Digiscan system). Males displayed a significant reduction in levels of various measures of locomotor activity following exposure to fox odor on each exposure day relative to baseline levels. Males preferred the corner of the testing box significantly more on the second day of fox odor exposure relative to baseline. Although females showed only a brief reduction in the number of movements made on the first day of odor exposure, this response lasted significantly longer on each of the subsequent odor exposure days. The reliability of the reductions in activity levels displayed across days by breeding male voles supports the hypothesis that this response is adaptive. Furthermore, the results suggest that, although female voles do not generally display this behavioral response, it can be elicited in females when the predation threat is repeated in consistent context.

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Tài liệu tham khảo

Adams, M. R., Tamarin, R. H., and Callard, I. P. 1980. Seasonal changes in plasma androgen levels and the gonads of the beach vole, Microtus breweri. Gen. Comp. Endocrinol. 41:31-40.

Blanchard, R. J., Blanchard, D. C., Rodgers, J., and Weiss, S. M. 1990. The characterization and modelling of antipredator defensive behavior. Neurosci. Biobehav. Rev. 14:463-472.

Blanchard, D. C., Shepherd, J. K., De Padua Carobrez, A., and Blanchard, R. J. 1991. Sex effects in defensive behavior: Baseline differences and drug interactions. Neurosci. Biobehav. Rev. 15:461-468.

Blanchard, D. C., Spencer, R. L., Weiss, S. M., Blanchard, R. J., McEwen, B., and Sakai, R. R. 1995a. Visible burrow system as a model of chronic social stress: behavioral and neuroendrocrine correlates. Psychoneuroendocrinology 20(2):117-134.

Blanchard, R. J., Parmigiani, S., Bjornson, C., Masuda, C., Weiss, S. M., and Blanchard, D. C. 1995b. Antipredator behavior of Swiss-Webster mice in a visible burrow system. Aggress. Behav. 21:123-136.

Blanchard, R. J., Nikulina, J. N., Sakai, R. R., McKittrick, C., McEwen, B., and Blanchard, D. C. 1998. Behavioral and endocrine change following chronic predatory stress. Physiol. Behav. 63(4):561-569.

Calder, C. J., and Gorman, M. L. 1991. The effects of red fox Vulpes vulpes faecal odors on the feeding behaviour of Orkney voles Microtus arvalis. J. Zool. London 224:599-606.

Dickman, C. R., and Doncaster, C. P. 1984. Responses of small mammals to red fox (Vulpes vulpes) odor. J. Zool. London 204:521-531.

File, S. E., Zangrossi, Jr., H., Sanders, F. L, and Mabbutt, P. S. 1993. Dissociation between behavioral and corticosterone responses on repeated exposures to cat odor. Physiol. Behav. 54:1109-1111.

Heale, V. R., Vanderwolf, C. H., and Kavaliers, M. 1994. Components of weasel and fox odors elicit fast wave bursts in the dentate gyrus of rats. Behav. Brain Res. 63:159-165.

Jedrzejewski, W., and Jedrzejewski, B. 1990. Effect of a predator's visit on the spatial distribution of bank voles: Experiments with weasels. Can. J. Zool. 68:660-666.

Jedrzejewski, W., Rychlik, L., and Jedrzejewski, B. 1993. Responses of bank voles to odors of seven species of predators: Experimental data and their relevance to natural predator-vole relationships. Oikos 68:251-257.

Lee, C., Horvath, D. J., Metcalfe, R. W., and Inskeep, E. K. 1970. Ovulation in Microtus pennsylvanicus in a laboratory environment. Lab. Anim. Care 20:1098-1102.

Lima, S. L. 1998. Stress and decision making under the risk of predation: recent developments from behavioral, reproductive, and ecological perspectives. In A. P. Moller, M. Milinski, and P. J. B. Slater (eds.), Stress and Behavior; Advances in the Study of Behavior, Vol. 27, Academic Press, San Diego.

Madison, D. M. 1985. Activity rhythms and spacing, pp. 373-413, in R. H. Tamarin (ed.). Biology of New World Microtus. Special Publication No. 8. The American Society of Mammalogists, Boston.

Madison, D. M., and McShea, W. J. 1987. Seasonal changes in reproductive tolerance, spacing, and social organization in meadow voles: A microtine model. Am. Zool. 27:899-908.

McCravy, K. W., and Rose, R. K. 1992. An analysis of external features as predictors of reproductive status in small mammals. J. Mammal. 73(1):151-159.

Norrdahl, K., and Korpimaki, E. 1998. Does mobility or sex of voles affect risk of predation by mammalian predators? Ecology 79(1):226-232.

Ossenkopp, K.-P., and Kavaliers, M. 1996. Measuring spontaneous locomotor activity in small mammals, pp. 33-51, in K.-P. Ossenkopp, M. Kavaliers, and P. R. Sanberg (eds.). Measuring Movement and Locomotion: From Invertebrates to Humans. R. G. Landes Company, Austin, TX.

Ossenkopp, K.-P., Macrae, L. K., and Teskey, G. C. 1987. Automated multivariate measurement of spontaneous motor activity in mice: Time course and reliabilities of the behavioral measures. Pharmacol. Biochem. Behav. 27:565-568.

Perrot-Sinal, T. S. 1998. Anti-predator responses in rodents: sex differences and hormonal correlates. Unpublished PhD thesis. University of Western Ontario, London.

Perrot-Sinal, T. S., Heale, V. R., Kavaliers, M., and Ossenkopp, K.-P. 1996. Sexually dimorphic aspects of spontaneous activity in meadow voles (Microtus pennsylvanicus): Effects of exposure to fox odor. Behav. Neurosci. 110(5):1126-1132.

Perrot-Sinal, T. S., Innes, D., Kavaliers, M., and Ossenkopp, K.-P. 1998. Plasma testosterone levels are related to various aspects of locomotor activity in wild-caught male meadow voles (Microtus pennsylvanicus). Physiol. Behav. 64(1):31-36.

Sanberg, P. R., Hagenmeyer, S. H., and Henault, M. A. 1985. Automated measurement of multivariate locomotor behavior in rodents. Neurobehav. Toxicol. Teratol. 7:87-94.

Seabloom, R. W. 1985. Endocrinology, pp. 685-718, in R. H. Tamarin (ed.). Biology of New World Microtus, Special Publication No. 8. The American Society of Mammalogists, Boston.

Sullivan, T. P., Crump, D. R., and Sullivan, D. S. 1988. Use of predator odors as repellents to reduce feeding damage by herbivores. J. Chem. Ecol. 14(1):363-377.

Treit, D., and Fundytus, M. 1989. Thigmotaxis as a test for anxiolytic activity in rats. Pharmacol. Biochem. Behav. 31:959-962.

Vernet-Maury, E., Polak, E. H., and Demael, A. 1984. Structure-activity relationships of stress-inducing odorants in the rat. J. Chem. Ecol. 10(7):1007-1018.

Zangrossi, J. H., and File, S. E. 1992. Behavioral consequences in animal tests of anxiety and exploration of exposure to cat odor. Brain Res. Bull. 29(3/4):381-388.

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Journal of Chemical Ecology

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